I have a Bowtruckle named Pickett. He has attachment issues. They are...like a sentient plant, but not really quite that.
I am trying to remember how to use the camera that the woman who greeted me mentioned. I would just take a picture of him. Though, he is rather hidden at the moment.
There is an Erumpent. It is similar to what Muggles call a Rhinocerous, though it is not. It's horn has a particular substance that will make anything it touches explode, but it does not attack unless provoked.
I even have a Thunderbird. I rescued Frank from illegal trafficking in Egypt. Thunderbirds can sense danger and make storms. They are very intelligent creatures.
Really, I have quite a lot of creatures. The Niffler is perhaps the most mischievous. Never flash anything shiny around a Niffler if you don't want it to go missing.